Error messages appear after ./discourse-setup and input hostname, smtp port, etc. according to official installation. ENTER to continue, ‘n’ to try again, Ctrl+C to exit: letsencrypt.ssl.template.yml enabled Configuration file at containers/app.yml updated successfully! Updates successful. Rebuilding in 5 seconds. Building app Your Docker installation is not using a supported storage driver. If we were to proceed you may have a broken install. overlay2 is the recommended storage driver, although zfs and aufs may work as well. Other storage drivers are known to be problematic. You can tell what filesystem you are using by running “docker info” and looking at the ‘Storage Driver’ line. If you wish to continue anyway using your existing unsupported storage driver, read the source code of launcher and figure out how to bypass this check. Storage Driver Overlayfs to overlay2 I have try and follow ask ai bot discourse and searching previous topic, such as: Troubleshoot docker installation issues Docker Upgrade Removed AUFS Storage Driver, Killed Discourse “Your Docker installation is not using a supported storage driver.” Change the Docker storage backend But still does not work. root 3085 0.0 0.0 6480 2372 pts/1 S+ 05:27 0:00 grep --color=auto 2658 Can Not Instal Docker I have try change my vps providers into digitalocean, and two other vps provider but still failed. I thought it was my vps provider problem but after I try fresh installation in digital ocean with some fresh droplet and official/standard installation, still failed. Then I change into another two different vps providers, same. :face_with_raised_eyebrow: I thought it was my Ubuntu version, but after I try Ubuntu version 24, 22, 20, and 18 still failed. Client: Docker Engine - Community Version: 29.0.2 Context: default Debug Mode: false Plugins: buildx: Docker Buildx (Docker Inc.) Version: v0.30.0 Path: /usr/libexec/docker/cli-plugins/docker-buildx compose: Docker Compose (Docker Inc.) Version: v2.40.3 Path: /usr/libexec/docker/cli-plugins/docker-compose model: Docker Model Runner (Docker Inc.) Version: v1.0.0 Path: /usr/libexec/docker/cli-plugins/docker-model Server: Containers: 1 Running: 1 Paused: 0 Stopped: 0 Images: 3 Server Version: 29.0.2 Storage Driver: overlay2 Backing Filesystem: extfs Supports d_type: true Using metacopy: false Native Overlay Diff: true userxattr: false Logging Driver: json-file Cgroup Driver: systemd Cgroup Version: 2 Plugins: Volume: local Network: bridge host ipvlan macvlan null overlay Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog CDI spec directories: /etc/cdi /var/run/cdi Swarm: inactive Runtimes: io.containerd.runc.v2 runc Default Runtime: runc Init Binary: docker-init containerd version: fcd43222d6b07379a4be9786bda52438f0dd16a1 runc version: v1.3.3-0-gd842d771 init version: de40ad0 Security Options: apparmor seccomp Profile: builtin cgroupns Kernel Version: 5.15.0-161-generic Operating System: Ubuntu 22.04.5 LTS OSType: linux Architecture: x86_64 CPUs: 2 Total Memory: 2.407GiB Name: please-help-me ID: 398f33a7-2b49-4235-bcb9-4e1723a7bd81 Docker Root Dir: /var/lib/docker Debug Mode: false Experimental: false Insecure Registries: ::1/128 127.0.0.0/8 Live Restore Enabled: false Firewall Backend: iptables Anyone can help?

I can confirm this behavior on at least two sites I’ve set up recently. Something is wrong with git.docker.com and it fails to load overlay2 by default like it has for years. Create /etc/docker/daemon.json with this content: { "storage-driver": "overlay2" } then sudo systemctl restart docker It should work after that. You can check that it’s installed with docker info --format '{{.Driver}}'

[图片] pfaffman: I can confirm this behavior on at least two sites I’ve set up recently. Something is wrong with git.docker.com and it fails to load overlay2 by default like it has for years. Me too… I mean, currently, something wrong in official discourse installation process. I have try digitalocean with official installation but this error message appear. Then I move to another vps provider, same. I hope, anyone who struggle on discourse fresh installation in this November 2025 :sweat_smile:, will find above solution :index_pointing_up: This is my third day struggling :tired_face: and done. Thank you very much Mr. Jay :folded_hands:

[图片] iidbae: I mean, currently, something wrong in official discourse installation process. Well, it’s docker’s fault. I keep thinking that they’ll fix it, but until I notice that they do, all of my installs create that file so I don’t have to worry about it. I complained about it here: [图片] Overlay2 not enabled by default with get.docker.com on Ubuntu LTS. 24.04 General Sometime in the past week or two, installing Docker on Linux does not enable overlay2, as it had for some years. Is this a feature or a bug? If you want to install Discourse (you’re using it now!), this is a problem. Here’s an example of someone... Reading time: 1 min 🕑 Likes: 2 ❤

[图片] Storage drivers Learn the technologies that support storage drivers. Docker uses a new default storage driver for v29.0+ Docker Engine 29.0 and later uses the containerd image store by default for fresh installations. The containerd image store uses snapshotters instead of the classic storage drivers described on this page. If you’re running a fresh installation of Docker Engine 29.0 or later, or if you’ve migrated to the containerd image store, this page provides background on how image layers work but the implementation details differ. For information about the containerd image store, see containerd image store.

so then from what I’m understanding, we just need to also look for and include overlayfs? PR for that here: https://github.com/discourse/discourse_docker/pull/1014

I don’t know. I didn’t test whether overlay would work. At some point, it didn’t, and that’s why it’s a requirement. It didn’t occur to me that it’s no longer a requirement. Oh. containerd image store seems to report as overlayfs, so we should allow for this string as well.

Yeah, from the post you shared this is the diff: Storage Driver: overlayfs > driver-type: io.containerd.snapshotter.v1 I also reinstalled/updated docker on my dev machine, hit the same issue, and can confirm this seems to do the trick.

Overlayfs 到 Overlay2，新安装失败，存储驱动

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featheredtoast (Jeff Wong) 2025 年11 月 21 日 00:21 6

那么根据我的理解，我们只需要查找并包含 overlayfs 即可？

相关的拉取请求（PR）在这里：

Overlay2 is no longer installed in Docker by default (because it's deprecated)

话题		回复	浏览量
Overlay2 is no longer installed in Docker by default (because it's deprecated) Bug	5	1051	2025 年11 月 24 日
“Your Docker installation is not using a supported storage driver.” Self-hosting	18	1915	2024 年3 月 15 日
Aufs/overlay2 storage driver (docker) Self-hosting	2	2919	2018 年3 月 30 日
"Your Docker installation is not using a supported storage driver." Self-hosting	8	2916	2019 年8 月 1 日
Docker is not using a supported storage driver Self-hosting	5	1296	2019 年7 月 8 日

Overlayfs 到 Overlay2，新安装失败，存储驱动

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